package chapter02;

public class    Example29 {
    public static void main(String[] args) {
        int[] arr={9,8,3,5,2};
        System.out.println("冒泡排序前");
        printArray(arr);
        System.out.println("冒泡排序后");
        printArray(arr);
        bubbleSort(arr);
        System.out.println("冒泡倒序后");
        printArray(arr);
        trj(arr);
    }

    public static void printArray(int[] arr) {
        for (int i = 0; i < arr.length; i++) {
            System.out.print(arr[i] + " ");
        }
        System.out.println("\n");
    }

    public static void bubbleSort(int[] arr) {
        for (int i = 0; i < arr.length-1; i++) {
            for (int j = 0; j < arr.length-i-1; j++) {
                if (arr[j]>arr[j+1]){
                    int temp = arr[j];
                    arr[j] = arr[j+1];
                    arr[j+1] = temp;
                }
            }
            System.out.print("第一" +(i+1)+"轮排序后");
            printArray(arr);
        }
    }

    public static void trj(int[] arr) {
        for (int i = 0; i < arr.length-1; i++) {
            for (int j = 0; j < arr.length-i-1; j++) {
                if (arr[j] < arr[j+1]) {
                    int trjsb = arr[j];
                    arr[j] = arr[j+1];
                    arr[j+1]=trjsb;
                }
            }
            System.out.print("第一" +(i+1)+"轮倒序后");
            printArray(arr);
        }
    }
}
